Synonyms of 'vanguard'
Students have been in the vanguard of revolutionary change in China.
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If you are at the forefront of a campaign or other activity, you have a leading and influential position in it.
They are at the forefront of the campaign.
In a war, the front is a line where two opposing armies are facing each other.
Her husband is fighting at the front.
Thesaurus for vanguard from the Collins English Thesaurus
If someone is in the vanguard of something such as a revolution or an area of research , they are involved in the most advanced part of it. You can also refer to the people themselves as the vanguard .